The “Charlie’s Angels” star — and mom of 4-month-old Olive — has intentionally sheltered her daughter from the public eye, she tells Harper’s Bazaar in the cover story of the March issue.

“I was hiding like the Unabomber,” Barrymore, 38, said. Ultimately, the actress — who fell into Hollywood’s excesses with a career beginning at 3 years old — realized, “Unless I move into a bunker underground, I don’t have a choice in this matter.”